/* ===================================
   AI 리터러시 교육원 - 메인 스타일시트
   =================================== */

/* CSS Variables */
:root {
    --primary-color: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #818CF8;
    --secondary-color: #06B6D4;
    --accent-color: #F59E0B;
    --success-color: #10B981;
    --text-dark: #1F2937;
    --text-light: #6B7280;
    --bg-light: #F9FAFB;
    --bg-white: #FFFFFF;
    --border-color: #E5E7EB;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans KR', 'Malgun Gothic', '맑은 고딕', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-white);
    overflow-x: hidden;
}

/* Font Awesome Icon Replacement - 이모지 기반 */
i.fas, i.far, i.fab, i.fa {
    font-style: normal;
    font-size: 1em;
    display: inline-block;
}

i.fa-brain::before { content: '🧠'; }
i.fa-user-tie::before { content: '👨‍💼'; }
i.fa-university::before { content: '🏛️'; }
i.fa-chalkboard-teacher::before { content: '👨‍🏫'; }
i.fa-award::before { content: '🏆'; }
i.fa-book-open::before { content: '📖'; }
i.fa-rocket::before { content: '🚀'; }
i.fa-users::before { content: '👥'; }
i.fa-star::before { content: '⭐'; }
i.fa-user-graduate::before { content: '🎓'; }
i.fa-certificate::before { content: '📜'; }
i.fa-headset::before { content: '🎧'; }
i.fa-lightbulb::before { content: '💡'; }
i.fa-chart-pie::before { content: '📊'; }
i.fa-bullseye::before { content: '🎯'; }
i.fa-magic::before { content: '✨'; }
i.fa-users-cog::before { content: '⚙️'; }
i.fa-trophy::before { content: '🏆'; }
i.fa-phone::before { content: '📞'; }
i.fa-book::before { content: '📚'; }
i.fa-microscope::before { content: '🔬'; }
i.fa-building::before { content: '🏢'; }
i.fa-envelope::before { content: '✉️'; }
i.fa-clock::before { content: '🕐'; }
i.fa-check-circle::before { content: '✅'; }
i.fa-graduation-cap::before { content: '🎓'; }
i.fa-chart-line::before { content: '📈'; }
i.fa-chevron-down::before { content: '⬇️'; }
i.fa-check::before { content: '✓'; }
i.fa-paper-plane::before { content: '✈️'; }
i.fa-arrow-up::before { content: '⬆️'; }
i.fa-facebook::before { content: '📘'; }
i.fa-twitter::before { content: '🐦'; }
i.fa-linkedin::before { content: '💼'; }
i.fa-youtube::before { content: '📺'; }
i.fa-newspaper::before { content: '📰'; }

/* Animate.css 효과 - 순수 CSS로 구현 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.animate__animated {
    animation-duration: 1s;
    animation-fill-mode: both;
}

.animate__fadeIn {
    animation-name: fadeIn;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-lg);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    cursor: pointer;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-image {
    height: 50px;
    width: auto;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.logo:hover .logo-image {
    transform: rotate(5deg);
}

.logo i {
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: all 0.3s ease;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding-top: 80px;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.1)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text {
    color: white;
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.title-main {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.title-sub {
    font-size: 2rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.9);
}

.hero-description {
    font-size: 1.25rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.95);
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.badge {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: white;
    color: var(--primary-color);
}

.btn-primary:hover {
    background: var(--bg-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-frame {
    position: relative;
    width: 400px;
    height: 400px;
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    border: 5px solid white;
}

.image-decoration {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 3px solid rgba(255, 255, 255, 0.5);
    border-radius: 20px;
    z-index: -1;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ===================================
   Sections
   =================================== */
.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--text-dark);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-top: 1.5rem;
}

/* ===================================
   About Section
   =================================== */
.about-section {
    background: var(--bg-light);
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.about-card {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.profile-image-container {
    width: 200px;
    height: 200px;
    margin: 0 auto 2rem;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 5px;
}

.profile-cartoon {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    background: white;
}

.card-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: white;
}

.about-card h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.position {
    color: var(--primary-color);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.description {
    line-height: 1.8;
    color: var(--text-light);
    font-size: 1.1rem;
}

.credentials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.credential-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.credential-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.credential-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.credential-card h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.credential-card ul {
    list-style: none;
}

.credential-card li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    line-height: 1.6;
}

.credential-card li:last-child {
    border-bottom: none;
}

.credential-card strong {
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.25rem;
}

/* ===================================
   Education Section
   =================================== */
.education-section {
    background: white;
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.program-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all 0.3s ease;
    position: relative;
}

.program-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.program-card.featured {
    background: var(--gradient-1);
    color: white;
    border: none;
}

.featured-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--accent-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
}

.program-icon {
    width: 70px;
    height: 70px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    color: var(--primary-color);
}

.program-card.featured .program-icon {
    background: rgba(255, 255, 255, 0.3);
    color: white;
}

.program-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.program-description {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    color: var(--text-light);
}

.program-card.featured .program-description {
    color: rgba(255, 255, 255, 0.9);
}

.program-features {
    list-style: none;
    margin-bottom: 1.5rem;
}

.program-features li {
    padding: 0.75rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.program-features i {
    color: var(--success-color);
}

.program-card.featured .program-features i {
    color: white;
}

.program-badge {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
}

.program-card.featured .program-badge {
    background: rgba(255, 255, 255, 0.3);
}

.education-highlights {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.highlight-box {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
}

.highlight-box:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

.highlight-box i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.highlight-box:hover i {
    color: white;
}

.highlight-box h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.highlight-box p {
    font-size: 0.95rem;
    color: var(--text-light);
}

.highlight-box:hover p {
    color: rgba(255, 255, 255, 0.9);
}

/* ===================================
   Consulting Section
   =================================== */
.consulting-section {
    background: var(--bg-light);
}

.consulting-intro {
    margin-bottom: 3rem;
}

.intro-card {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    text-align: center;
}

.intro-card i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.intro-card h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.intro-card p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
}

.consulting-services {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    position: relative;
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.service-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 3rem;
    font-weight: 900;
    color: rgba(79, 70, 229, 0.1);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.service-card h4 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.service-card > p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-card ul {
    list-style: none;
}

.service-card li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
}

.service-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: 700;
}

.consulting-cta {
    background: var(--gradient-1);
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    color: white;
}

.cta-content h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
}

/* ===================================
   Achievements Section
   =================================== */
.achievements-section {
    background: white;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.achievement-card {
    background: var(--bg-light);
    padding: 2.5rem;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.achievement-card:hover {
    background: white;
    box-shadow: var(--shadow-xl);
    transform: translateY(-5px);
}

.achievement-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    color: white;
}

.achievement-icon.book {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.achievement-icon.research {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.achievement-icon.presentation {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.achievement-card h4 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.achievement-card ul {
    list-style: none;
}

.achievement-card li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    line-height: 1.6;
    color: var(--text-light);
}

.achievement-card li:last-child {
    border-bottom: none;
}

.achievement-card strong {
    color: var(--text-dark);
    font-weight: 600;
}

.statistics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    background: var(--gradient-1);
    padding: 3rem;
    border-radius: 20px;
}

.stat-item {
    text-align: center;
    color: white;
}

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
}

/* ===================================
   Contact Section
   =================================== */
.contact-section {
    background: var(--bg-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    background: var(--gradient-1);
    color: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
}

.info-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
}

.info-card h4 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.info-item {
    background: white;
    padding: 1.5rem;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.info-item strong {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--text-dark);
}

.info-item p {
    color: var(--text-light);
    margin: 0;
}

.social-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.social-link {
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.contact-form-wrapper {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-message {
    display: none;
    padding: 1rem;
    border-radius: 10px;
    margin-top: 1rem;
    text-align: center;
    font-weight: 600;
}

.form-message.success {
    display: block;
    background: #D1FAE5;
    color: #065F46;
}

.form-message.error {
    display: block;
    background: #FEE2E2;
    color: #991B1B;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-about h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 1rem;
}

.footer-logo-image {
    height: 60px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.3));
}

.footer-about p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-slogan {
    font-weight: 700;
    color: var(--primary-light);
    margin-top: 1rem;
}

.footer-links h4,
.footer-contact h4 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    line-height: 2;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.footer-contact p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 2;
}

.footer-contact i {
    margin-right: 0.5rem;
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0.5rem 0;
}

/* ===================================
   Scroll to Top Button
   =================================== */
.scroll-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-image {
        order: -1;
    }

    .image-frame {
        width: 300px;
        height: 300px;
    }

    .title-main {
        font-size: 2.5rem;
    }

    .title-sub {
        font-size: 1.5rem;
    }

    .credentials-grid,
    .programs-grid,
    .achievements-grid {
        grid-template-columns: 1fr;
    }

    .consulting-services {
        grid-template-columns: 1fr;
    }

    .education-highlights,
    .statistics {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .logo {
        font-size: 1rem;
    }

    .logo-image {
        height: 40px;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
        gap: 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        padding: 1rem 0;
    }

    .hero {
        min-height: auto;
        padding: 100px 0 50px;
    }

    .title-main {
        font-size: 2rem;
    }

    .title-sub {
        font-size: 1.25rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .education-highlights,
    .statistics {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth transitions */
* {
    transition: background-color 0.3s ease, color 0.3s ease;
}